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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 100 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.33.6 ÷ 6 =
  2. 2.Find the LCM of 30 and 48.
  3. 3.The HCF of two numbers is 9 and their LCM is 504. One of the numbers is 63. What is the other number?
  4. 4.4 : 13 = 28 : ?
  5. 5.Which of these numbers divides exactly by 8? (a) 5180 (b) 6840 (c) 3089 (d) 3437
  6. 6.Which is closest to 798 ÷ 19? (a) 40 (b) 400 (c) 80 (d) 20
  7. 7.Write 1/2 as a percent.
  8. 8.The HCF of two numbers is 4 and their LCM is 80. One of the numbers is 16. What is the other number?
  9. 9.A car goes 72 km on 8 litres of petrol. How far can it go on 29 litres (in km)?
  10. 10.What percent of 50 is 41?
  11. 11.6 × (15 − 13) + 28 ÷ 7 =
  12. 12.8.4 × 2 =
  13. 13.10/12 − 2/8 =
  14. 14.2 × (12 − 2) + 24 ÷ 2 =
  15. 15.Find the LCM of 24 and 9.
  16. 16.What is 3/7 of 35 litres?
  17. 17.9 × (21 − 14) + 40 ÷ 8 =
  18. 18.Which is closest to 796 × 20? (Round each number first.) (a) 1600 (b) 16000 (c) 32000 (d) 160000
  19. 19.Priya scored 8 marks out of 80 in a test. What percentage did Priya score?
  20. 20.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 4, 10 or 9.
  21. 21.What is the smallest number you must add to 825 so that it divides exactly by 8?
  22. 22.The ratio of boys to girls in a class is 7 : 5. There are 28 boys. How many girls are there?
  23. 23.Three temple bells ring every 12, 8 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.If 4 kites cost ₹52, how much do 17 kites cost (in ₹)?
  25. 25.25% of a number is 72. What is the number?
  26. 26.6 : 14 = 30 : ?
  27. 27.Sneha takes 50 seconds and Arjun takes 60 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  28. 28.What is 3/5 of 85 litres?
  29. 29.2.78 + 9.4 =
  30. 30.Manav takes 80 seconds and Kabir takes 50 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  31. 31.Find the LCM of 8 and 14.
  32. 32.Which is closest to 804 + 296 + 901? (a) 2200 (b) 1900 (c) 2000 (d) 2100
  33. 33.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 4, 10 or 12.
  34. 34.1/4 + 4/5 =
  35. 35.(12 + 14) × 5 − 4 =
  36. 36.Two tanks hold 15 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  37. 37.A car goes 22 km on 2 litres of petrol. How far can it go on 27 litres (in km)?
  38. 38.Round 19.51 to one decimal place. =
  39. 39.23 + 11 × 3 − 1 =
  40. 40.23 − 16 ÷ 4 × 2 =

Answer key

  1. 5.6
  2. 240
  3. 72
  4. 91
  5. 6840
  6. 40
  7. 50
  8. 20
  9. 261
  10. 82
  11. 16
  12. 16.8
  13. 7/12
  14. 32
  15. 72
  16. 15
  17. 68
  18. 16000
  19. 10
  20. 181
  21. 7
  22. 20
  23. 120
  24. 221
  25. 288
  26. 70
  27. 300
  28. 51
  29. 12.18
  30. 400
  31. 56
  32. 2000
  33. 62
  34. 21/20
  35. 126
  36. 5
  37. 297
  38. 19.5
  39. 55
  40. 15

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